build:iree: Pin IREE host compiler to a specific snapshot
build:iree: Pin IREE host compiler to a specific snapshot

To workaround the upstream breakage

Bug: 202859345
Change-Id: Idd1bb4e671ec644616378a6850f1058762c851e8
GitOrigin-RevId: 60ddfffb690dd574dcfc7abd1df68c17e0e516e6

AmbiML/sparrow-build